Android Open Source - CameraFragment Camera Fragment

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License

The source code is released under:

MIT License

Java Source Code

package jp.co.mongolian.android.camerafragment;
//from   ww w .  ja va2 s . co  m
import android.app.Fragment;
import android.graphics.Bitmap;
import android.hardware.Camera.AutoFocusCallback;
import android.hardware.Camera.PictureCallback;
import android.hardware.Camera.PreviewCallback;
import android.hardware.Camera.ShutterCallback;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

public class CameraFragment extends Fragment {
  
  private boolean isZoonEnabled;

  /**
   * PictureCallback
   *
   */
  public interface OnPictureTakenListener {

    /**
     * @param data jpeg image data cropped into fragment view size
     */
    public void onPictureTaken(Bitmap jpegBitmap);
  }

  @Override
  public void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    outState.putBoolean("zoom_enabled", isZoonEnabled);
  }

  @Override
  public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    if (savedInstanceState != null) {
      isZoonEnabled = savedInstanceState.getBoolean("zoom_enabled", false);
    }
  }

  @Override
  public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    return inflater.inflate(R.layout.fragment_camera, null, false);
  }

  @Override
  public void onResume() {
    super.onResume();
    CameraView camera = getCameraView(); 
    if (camera != null) {
      camera.onResume();
      camera.setZoomEnabled(isZoonEnabled);
    }
  }

  @Override
  public void onPause() {
    super.onPause();
    CameraView camera = getCameraView(); 
    if (camera != null) camera.onPause();
  }

  /**
   * start preview
   */
  public void startPreview() {
    CameraView camera = getCameraView(); 
    if (camera != null) camera.startPreview();
  }

  /**
   * stop preview
   */
  public void stopPreview() {
    CameraView camera = getCameraView(); 
    if (camera != null) camera.stopPreview();
  }
  
  
  /**
   * take a picture
   * or nothing happen if the camera is not available now. 
   * @param shutter
   * @param raw
   * @param jpeg
   */
  public void takePicture(ShutterCallback shutter, PictureCallback raw, PictureCallback jpeg) {
    CameraView camera = getCameraView(); 
    if (camera != null) camera.takePicture(shutter, raw, jpeg);
  }

  /**
   * start auto focus
   * @param callback
   */
  public void autoFocus(AutoFocusCallback cb) {
    CameraView camera = getCameraView(); 
    if (camera != null) camera.autoFocus(cb);
  }

  /**
   * set preview callback on camera 
   * @param cb
   */
  public void setPreviewCallback(PreviewCallback cb) {
    CameraView camera = getCameraView(); 
    if (camera != null) camera.setPreviewCallback(cb);
  }
  
  private CameraView getCameraView() {
    View view = getView();
    if (view == null) return null;
    return (CameraView)getView().findViewById(R.id.camera_view); 
  }
}

Java Source Code List

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